Means for retaining roller-bearing sleeves on shafts.



G. S. LOOKWOOD.

MEANS FOR RETAINING ROLLER BEARING SLEEVES 0N SHAFTS.

APPLICATION II'LED DEC. 23, 1909..

955,120, Patented Apr. 12, 1910.

UNITED STATES PA ENT ,ornrcn, CHARLES s. Locxwoon, or Nnwm, NEW nnsnx,nssrgmon 1'0 rrYArr- MILLER BEARING comrnmr, or nmnrson, NEW annsnv, ACOZBPORATIGN on N W MEANS FOR RETAINING BOILER-BEARING SLEEVES ONSHAF'IES.

Specification of Letters ratent.

Patented Apr. 12, 1910.

Application filed December 23, 1909. Serial No. 534,585.

Toall whom it may concern:

Be it lmown that I, CHARLES S. Loonwoon, a citizen of the United States,residing at 289 Market street, Newark, county of Essex, and: State ofNew Jersey, have invented certain new and useful Improvements in Meansfor Retaining Roller-Bearing Sleeves on Shafts, fully described andrepresented in the following specification and the accompanyingdrawings, forming a part of the same.

This invention relates to that class of roller bearings in which adivided sleeve is applied to the shaft-journal within theantifriction-rolls, to rotectL the journal from wear, such sleeve ingremovable so that it can be readily applied to the shaft and renewedwith equal facility when worn. Sleeves divided at one or at both sideshave been commonly used, the bore of the sleeve being a little less thanthe diameter of the shaft so that when it is sprung upon the shaft andfitted to its proper position it is held elastically thereon by itsfrictional grip. It has been found that while such grip may serve tohold the sleeve upon the shaft while mounting the shaft and rollerbearing in their working positions it does not prevent the sleeve fromturning more or-less upon the shaft, nor does it sufiice to keep thesleeve from slipping endwise. The present invention provides means forpreventing such endwise or rotary movement of the sleeve upon the shaft,by clamping a collar upon the shaft at the end of the sleeve to resistendwise movement, and when desired furnishing the collar and sleeve withsome interlocking means to prevent rotary movement. In this invention,the sleeve is made to extend beyond the ends of the casing of thebearing, and one or more collars is or are clamped upon the shaft at theends of the bearing and formed with a recess to loosely embrace the endof the sleeve, and the collar and sleeve are preferably formed with a.projection and notch, or other form of engaging means, to interlockwith one another. The casing of the bearing and the collars may bedividedlongitudinally if desired, to facilitate their a plication totheshaft.

Two mo ifications of invention are shown in the drawing, inf-one ofwhich the,

collars are provided with studs'to engage notches in the ends of thesleeve, and in. the other the sleeve is formed with integral studs orton ues to engage notches in the collar.

In the drawing, Fi ure 1 shows the inner end of one of the coll ars;Fig. 2 is a longitudinalsection of a bearing provided with theimprovements and a shaft. not'in section therein; Fig. 3 shows the sideof one sleevesection with notches in its opposite ends; Fig. 4 isan edgeview of a collar with. one portion broken away where hatched showing thebottom of'the recess and a'notch extend- Fig. 5 is a--view similar toFig. I with the studs upon the sleeve and the notches in the collars;Fig. 6 is a side view, and Fig. 7 an end view of the sleeve having theintegral studs or tongues.

In Fig. 1, a designates a casing containing a set of rolls 6 to supporta. shaft 0, the latter being provided with the wearingsleeve d. Thissleeve, as shown in Figs. 1 and 2, is divided into two separate sectionsseparated by oblique joints e as is usual. Each section of the sleeveprojects beyond the ends of the casing and has a hole or notch f in eachend. (See Fig. 3.) Such hole or notch is termed a socket herein.

Divided collars g are shown with bore 9" applied to the shaft'at theends of the casing an furnished each with an annular recess 72. upon theend next to the casing to loosely embrace or cover the projecting end ofthe sleeve. The collar-sections are shown in Fig. 1 with screws 11inserted across their joint 7' to clamp them tightly upon the shaft, butthe recess at the same time clearing the sidesof the sleeve and not,therefore, operating to clamp them upon the shaft.

Opposite radial studs k are shown fitted in the periphery of the recess71. to engage the holes or notches f upon the ends of the sleeve. Thebottoms of the recesses 7L abut the ends of the sleeve and thus hold itfrom slip ing endwise upon the shaft; While the stu s It by engagementwith the sockets f serve to prevent the sleeve from rotation upon theshaft. The sleeve-sections hu the shaft by an elastic gri when subjectedto the pressure of the ro ls b, and it is found that the rolls operatein practice to stretch the outer ed therefrom into the bore of thecollar; f

'lcan art of the sleeve-sections and thus curl the bodies of thesections into close contact with the shaft.

Fi s. 4, 5 and 6 show a construction in whic the sleeve d is divided, atone side only, by an oblique joint e, and the studs made integral withthe sleeve-in the form of ton es is projected from the opposite ends oft e sleeve.

The collars shown in Figs. 4 and 5 have shallow recesses h which serveto hold the sections of the sleeve upon the shaft when handled apartfrom the caring, and sockets or notches f are milled in the bore of thecollar at the bottom of the recess suitable to admit and enga e thestuds'k upon the sleeve. The notc iies f and the studs in perform thesame function as the sockets f and stud k of Fig. 2, and the bottom ofthe recess h holds the sleeve from end movement the same as the bottomof the recess h which abuts the end of the sleeve in Fig. 2. The recessin the collar is made of greater de th with the construction in 'Fig. 2than in ig. 5 to ermit the insertion of the radial studs d to supportsuch studs over the exterior of the sleeve in engagement with the notchf.

The essential part of the invention is the provision of interlockingmeans to engage one or both of the collars with the end of the sleeve toprevent the rotation of the sleeve u on the shaft, the longitudinalmovement of the sleeve being also prevented by such engagement, or bythe abutting of the collars with the rojecting ends of the sleeve. Fig.1 shows t ecollar divided to facilitate its application to the shaft atany point, and held upon the shaft by the clamping action of the bolts73; but Figs. 4 and 5 show integral collars g with set-screws g tosecure them in place, and as such integral collars perform all thefunctions of the divided collar in this invention, it is obvious thatthe collar need exercise no clamping action upon the sleeve to hold itfrom turning by mere friction. Such solid collars are applied to theshaft by slipping them over the end of the same as is common, and thecasin is shown with a longitudinal division Z in ig. 5 for applicationto the shaft between such collars.

This invention is especially applicable to sleeves divided at one orboth sides, as such sleeves are liable to slip upon the shaft when setin lace there0n; andthe use of such sleeves 1s very extensive as theymay be made of sheet-metal, rolled to cylindrical form, at much lessexpense than a tubular bored sleeve. The invention thus overcomes allthe objections to the use of split sleeves,

which cannot retain themselves tightly upon the shaft like a tightlyfitting solid sleeve.

It is obvious that a single collar havin a stud k fitted to the hole fat the left han end of Fig. 3 serves effectually to prevent longitudinalmovement of the sleeve or any rotatlon of the same, and such singlecollar, therefore, fully embodies the invention with or without a collarat the opposite end of the sleeve.

Having thus set forth thenature of the invention what is claimed hereinis:

1. In a roller bearing, the combination with the casin the anti-frictionrolls an shaft sup orte thereby, of a divided sleeve fitted to t e shaftwithin the rolls and projected beyond the ends of the casing, and one ormore collars secured upon the shaft adjacent the ends of the casing andhaving each a recess inclosing one end of the sleeve and abutting at itsbottom with such end to hold the sleeve from end movement.

2. In a roller bearing, the combination with the casin the anti-frictionrolls an shaft supporte thereby, of a divided sleeve fitted to the shaftwithin the rolls and proected beyond the ends of the casin a collarsecured upon the shaft adjacent tie end of the casing and having arecess inclosing one end of the sleeve and abutting at its bottom withsuch end to hold the sleeve from end movement, and means upon the sleeveand the collar for holding the sleeve from rotation.

3. In a roller bearing, the combination,

with the casing, the anti-friction rolls, and

a shaft supported thereby, of a divided sleeve fitted to the shaftwithin the rolls and projected beyond the ends of the casing, a divldedcollarsecured upon the shaft at each end of the casing and having arecess larger than the sleeve, abutting the end of the sleeve, and aprojection upon one of the parts engaging a notch in the opposite partto holdthe sleeve from rotation.

4. In a roller bearing, the combination, with the casing theanti-friction rolls, and a shaft supported thereby, of a divided sleevefitted to the shaft within the rolls and projected beyond the ends ofthe casin and such projectin end provided with the notches f, a dividedcollar secured upon the shaft at each end of the casing-and havin arecess abutting the end of the sleeve, an the side of the recessclearing the outside of the sleeve and having a stud to engage the saidnotch to hold the sleeve from rotation.

5. In a roller bearing, the combination, with the casing, theanti-friction rolls, and a shaft supported thereby, of a divided sleevehaving two sections held elastically u on the shaft with its ends-projected beyond t e ends of the casing, a divided collar secured upon theshaft at each end of the casing and having'a recess abutting the end ofthe sleeve, and a projection upon one of the parts engaging a notch inthe opposite part to hold the sleeve from rotation.

6. In a roller bearing, the combination,

with a casing divided longitudinally, and sides of the recess engagingthe notches upon 10 anti-friction rolls with a shaft supported the endsof both the sleeve-sections.

thereby, of a divided sleeve havin two sec- In testimony whereof I havehereunto. set tions held elastically upon the sha with its my hand inthe presence of two subscribing ends rojected beyond the ends of thecasing witnesses. and ormed with the notches f, a divide CHARLES S.LOCKWOOD. collar clamped u on the shaft at each end Witnesses: of thecasin an havin a recess abutting H. W. ELWELL,

the end of t e sleeve, an studs in opposite J G. WEISS.

